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<?php $input = 'lorem lis pum'; for( $i = 0, $ilen = strlen( $input ), $result = array(); $i < $ilen; $i++ ) { $chr = $input[ $i ]; if( $chr === ' ' ) { $chr = '_'; } $result[ $chr ] = isset( $result[ $chr ] ) ? $result[ $chr ] + 1 : 1; } var_dump( $result );
Output for git.master, git.master_jit, rfc.property-hooks
array(10) { ["l"]=> int(2) ["o"]=> int(1) ["r"]=> int(1) ["e"]=> int(1) ["m"]=> int(2) ["_"]=> int(2) ["i"]=> int(1) ["s"]=> int(1) ["p"]=> int(1) ["u"]=> int(1) }

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